User Manual

87
APPENDIX
C Troubleshooting and Customer Support
COMMON PROBLEMS AND SOLUTIONS
On my Mac, my MOTU USB interface just won’t show up
in Audio MIDI Setup, no matter what I do.
If it’s not an obvious problem like cables or power, do a
fresh install of the latest Express interface driver installer
downloaded from www.motu.com.
On my PC, my MOTU USB interface ports don’t show up
in my Windows MIDI software, no matter what I do.
Have you unplugged the USB cable and then plugged it
back in lately? Under certain circumstances, doing so will
cause the interface’s drivers to lose communication with
the hardware. If this is happening to you, make sure the
USB cable is plugged in (both to the computer and the
interface, of course). Then, quit all MIDI applications.
When you relaunch them, the interface should now be
available to them again. If this is still not the case, shut
down the computer, make sure the interface is powered
on, and power up the computer again.
ClockWorks keeps displaying a message saying that
communication with my MOTU interface has been
disrupted, even though the interface is connected.
If the problem is not simply that your MOTU interface is
switched off or has a loose cable, it may be that
communication between ClockWorks and your MOTU
interface has been disrupted somehow. If you have a drum
machine or sequencer connected to it, be sure that it is not
sending MIDI sync to the Express interface. If so, turn off
the drum machine while launching the ClockWorks and
then mute real time data on its input cable. To reestablish
the connection between ClockWorks and interface, switch
off all MOTU interfaces, quit ClockWorks, let the boxes sit
for a moment, and then turn them back on again. Always
return to the simplest possible scenario if you just can’t
seem to get to the bottom of the problem. Starting from
the ground up usually either corrects the problem or gives
you valuable insight into how to solve it.
!USB Interfaces Manual Book Page 87 Tuesday, August 16, 2011 11:21 AM